Update README.md.

README.md

@@ -2,11 +2,17 @@
 
 ## Dev environment
 
+### One time
+
 - Install hugo.
 - Install dart-sass.
+- `cd themes/blowfish && npm install`
+
+### Each time
 
 ```bash
-hugo server -D
+npm run dev # Loads Tailwind CSS in watch mode
+hugo server # Starts the Hugo server
 ```
 
 ## Deploy
@@ -14,3 +20,9 @@ hugo server -D
 ```bash
 scripts/deploy.sh
 ```
+
+## Reference
+
+- [Colors](https://tailwindcss.com/docs/colors)
+- [Icons](https://blowfish.page/samples/icons/)
+